Global Patent Index - EP 1544440 B8

EP 1544440 B8 20100217 - PRIME MOVER CONTROLLER OF A CONSTRUCTION MACHINE.

Title (en)

PRIME MOVER CONTROLLER OF A CONSTRUCTION MACHINE.

Title (de)

ANTRIEBSAGGREGATSTEUERUNG EINER BAUMASCHINE.

Title (fr)

CONTRÔLEUR DU MOTEUR D'UN ENGIN DE TRAVAUX.

Publication

EP 1544440 B8 20100217 (EN)

Application

EP 02807863 A 20020926

Priority

JP 0209966 W 20020926

Abstract (en)

[origin: EP1544440A1] A prime mover control device of a construction machine according to the present invention includes a hydraulic pump (11) driven by a prime mover (40), a hydraulic traveling motor (5) driven with pressure oil output from the hydraulic pump (11), and a control valve (12) that controls a flow of the pressure oil from the hydraulic pump (11) to the hydraulic motor (5) in response to an operation of an operating member (22a). The prime mover control device further includes a deceleration detection means (31) that detects a deceleration operation at the operating member (22a), a rotation speed detection means (35) that detects a rotation speed Nm of the hydraulic motor (5), and a prime mover rotation speed control means (30,43) that executes speed reduction control of the rotation speed of the prime mover (40) based upon detection results provided by the rotation speed detection means (35) if the deceleration operation is detected by the deceleration detection means (31) and controls the rotation speed of the prime mover (40) in correspondence to an operation of the operating member (22a) which is detected to be other than the deceleration operation. <IMAGE>

IPC 8 full level

B60K 17/10 (2006.01); E02F 9/22 (2006.01); F02D 11/10 (2006.01); F02D 29/00 (2006.01); F02D 29/02 (2006.01); F02D 31/00 (2006.01); F02D 41/12 (2006.01)

CPC (source: EP US)

B60K 17/10 (2013.01 - EP US); B60W 10/06 (2013.01 - EP US); B60W 10/10 (2013.01 - EP US); B60W 30/18136 (2013.01 - EP US); E02F 9/2246 (2013.01 - EP US); E02F 9/2253 (2013.01 - EP US); E02F 9/226 (2013.01 - EP US); E02F 9/2296 (2013.01 - EP US); F02D 11/105 (2013.01 - EP US); F02D 29/00 (2013.01 - EP US); F02D 29/02 (2013.01 - EP US); F02D 31/001 (2013.01 - EP US); F16H 61/4148 (2013.01 - EP US); F16H 61/4157 (2013.01 - EP US); B60W 10/103 (2013.01 - EP US); B60W 2300/17 (2013.01 - EP US); B60W 2540/10 (2013.01 - EP US); B60W 2710/0644 (2013.01 - EP US); F02D 41/12 (2013.01 - EP US); F02D 2200/1012 (2013.01 - EP US); F02D 2200/602 (2013.01 - EP US); F02D 2200/702 (2013.01 - EP US); F16H 59/40 (2013.01 - EP US); F16H 2059/186 (2013.01 - EP US); F16H 2059/6876 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT NL SE

DOCDB simple family (publication)

EP 1544440 A1 20050622; EP 1544440 A4 20070418; EP 1544440 B1 20090603; EP 1544440 B8 20100217; CN 100354513 C 20071212; CN 1668835 A 20050914; DE 60232553 D1 20090716; JP 3902627 B2 20070411; JP WO2004029435 A1 20060126; US 2006096799 A1 20060511; US 7273124 B2 20070925; WO 2004029435 A1 20040408

DOCDB simple family (application)

EP 02807863 A 20020926; CN 02829669 A 20020926; DE 60232553 T 20020926; JP 0209966 W 20020926; JP 2004539438 A 20020926; US 52806705 A 20050315